Is there still hope for this plant?! I bought about a month ago, and I believe I may have over watered it. It is still in the same nursery pot that it came in. It's been constantly losing yellowing leaves. I moved it to a north facing a window. I haven't watered it since about a week ago. There are about 3 stems that completely lost all the leaves. Should I remove these stems? Can this plant be saved?

I would take a good piece off the top and re root it.

Your Wax Plant (Hoya carnosa) appears to be planted in a dense soil which is not conducive for a healthy Hoya. In nature, Hoyas grow on trees where they receive really good air circulation that allows the roots to dry quickly. When grown as a potted plant they require a light and airy medium, which allows for aeration at root level and good drainage which prevents root rot.

I'd advise repotting into a smaller plastic pot with drainage holes. A good potting media for Hoyas is something with lots of perlite and/or orchid bark mixed in, which will allow for proper drainage. If the leafless stem is dry and dead, you can trim it off but if there is still a little "give" when you bend it, it might still be a viable stem that could eventually produce new leaves.

Magpie26 said:I would take a good piece off the top and re root it.

I'd second this.

There is still good potential for it. You are in Southern California, and like my area, we share similar very dry and hot conditions, so our ambient environment is too dry for the Hoyas. Though they do like a well draining media, since our humidity levels is excessively dry, you have to step up your watering, but make sure to run your ceiling fan, they always like good airflow all around them, and bright light no direct sun.

You may want to repot to slighly smaller container and use chunkier media like bark mix, clay rocks, pumice. But got to exercise patience, it takes awhile again for plant to adjust to changes.

Or if you choose not to repot, do spray the vine as well during watering time, and make sure the media drains well, do not make it sit in water. No fertilizers for now, since your plant is still adjusting and showing stress.